<div class="welcome">
    <style type="text/css">
        .ztree { width: 400px; }
        .ztree li span.button.add {
            margin-left: 2px;
            margin-right: -1px;
            background-position: -144px 0;
            vertical-align: top;
            *vertical-align: middle;
        }
        .welcome {
            position: absolute;
            top: 0;
            bottom: 0;
            left: 0;
            right: 0;
        }
        .welcome .tree-side {
            position: absolute;
            top: 64.83333px;
        }
        .welcome .tree-side, .welcome .tree-side .layui-side-scroll {
            width: 400px;
            height: auto;
            overflow-y: auto;
        }
        .welcome .layui-body {
            left: 400px;
        }
        .layui-side-scroll {
            width: 200px;
        }
    </style>
    <div>
        <h1 class="page-title">监控任务启动</h1>
    </div>
    <div class="layui-side tree-side">
        <div class="layui-side-scroll">
            <!-- 左侧导航区域（可配合layui已有的垂直导航） -->
            <ul id="tree-list" class="ztree">
            </ul>
        </div>
    </div>
    <div class="layui-body">
    </div>
</div>